So, what is jet-lag and why were the Welsh players so keen to avoid it?
Jet-lag happens when you travel over a number of time zones in a short space of time, like the Welsh team did when they flew out to Azerbaijan on Monday evening.

Doing this disrupts your body's normal rhythms - such as when you get up in the morning, when you go to bed at night and when you feel like eating.

Having your bodyclock turned topsy-turvy will often make you feel tired and disorientated.

You might also suffer headaches, nausea, a loss of energy and a lack of appetite.